A request for a “mining wear plate” can describe two different parts. One faces moving rock and absorbs abrasion or impact. The other sits between machine components, carrying load while allowing controlled sliding. A bronze wear plate belongs to the second category when the equipment design specifies a copper-alloy bearing surface.
For procurement teams, the distinction matters more than the machine name. A crusher can contain both rock-contact liners and bronze bearing components, but they do different jobs. This guide identifies documented bronze wear plate positions, explains how to assess other sliding locations, and outlines the information needed to manufacture a custom part.
Gyratory Crushers: Two Documented Bronze Wear Plate Positions
Sandvik’s CG800i gyratory crusher specifications identify an eccentric wear plate in the eccentric assembly and a piston wearing plate in the Hydroset cylinder assembly. Both are specified as bronze. The document gives inner and outer diameters for the eccentric plate, and diameter and thickness for the piston plate. These are examples from particular crusher models, not standard dimensions for every mining machine.
The eccentric wear plate is part of the assembly involved in gyratory movement. The piston wearing plate sits in the hydraulic mainshaft support assembly. To establish how either part carries load and contacts its mating component, consult the assembly drawing. Neither should be confused with a cylindrical eccentric bushing or a crushing-chamber liner exposed to rock.
Their shape is also significant. These documented components are circular, whereas many products sold as bronze slide plates are rectangular. A drawing for an annular plate needs its own diameter, thickness and contact-face specifications. The name “wear plate” alone does not establish its geometry or whether a manufacturer can produce its size.
Flat Sliding Surfaces: Verify the Equipment Drawing
A flat bronze slide plate, guide plate or wear pad may be specified where two machine components move against each other under load. Possible locations include a guided slide or replaceable support face within a custom piece of mining machinery. A guide rail or excavator linkage, however, does not establish that its wear element is bronze. Depending on the design, it may use steel, polymer or another bearing material.
Locate the working interface first: which component moves, which surface supports it, and how is the replaceable plate retained? Then check the equipment drawing or original part specification. A rectangular pad with mounting holes belongs to a different assembly from the circular crusher plates described above, even if both are called wear plates.
Some designs specify graphite-plugged bronze for slow sliding where the specified lubrication arrangement is difficult to service. Graphite plugs are not an automatic upgrade. Their placement and suitability depend on the contact path, mating surface, load and original lubrication design.
Which Mining Wear Plates Face Rock Abrasion?
The term wear plate also covers bucket liners, chute liners, transfer-point liners and jaw crusher side plates. These parts can face bulk material or direct impact. Wear-resistant steel and hardfaced materials are common choices for such positions; a bronze bearing plate should not be assumed to serve the same purpose.
Ask what touches the working face. If rock repeatedly strikes or scrapes it, the requirement concerns material-handling wear protection. If a machine component slides against a controlled contact surface, the requirement may concern a guide or bearing plate. Both types can appear on mining equipment, so a request for “crusher wear plates” needs a part location or drawing before anyone selects an alloy.
What to Specify for a Custom Plate
For a flat plate, identify its length, width, finished thickness, working face and mounting features. Show the location of holes, countersinks, grooves or plugs where applicable. For an annular plate, specify inner diameter, outer diameter, thickness, contact face and any locating features. State the required material grade or original specification if available.
The drawing should also identify the mating component, movement direction, lubrication arrangement and dimensions that control the installed fit. These details help distinguish a sliding surface from a general abrasion liner. If an old component is supplied as a reference, mark which measurements come from worn areas; they may no longer represent the original finished size.
Include the drawing revision, quantity for each part number and required material or dimensional inspection documents in a production inquiry. An equipment model and part number provide useful context, but the applicable design revision still needs checking.
Send Your Mining Wear Plate Drawings for Production
JEDBUSHING manufactures custom copper-alloy sliding components to supplied drawings. For a batch inquiry, send the part drawings, quantities, material requirements and relevant assembly details so we can review the geometry and manufacturing requirements before quoting.
See our bronze wear plates for flat sliding and guide surfaces, and custom bronze parts for rings and other nonstandard shapes. Our mining machinery page covers related bearing components. Send your drawings with the equipment model, part numbers and planned order quantities for review.
FAQ
Is there a fixed minimum order quantity for custom mining wear plates?
There is no single quantity that fits every drawing. The applicable order quantity depends on the alloy, component size, casting route and machining work. Include your planned quantity so it can be assessed during quotation.
What if the original bronze alloy grade is unknown?
Provide any original specification or material record you have. If a physical sample is available, composition testing may offer a reference, alongside the operating conditions. Color alone cannot reliably identify an alloy.
Can material certificates and inspection records accompany a production batch?
State the required documents in your inquiry. Material and dimensional inspection records can be included according to the requirements agreed for the order.
How can I check whether a large annular plate is within your manufacturing capacity?
Send its drawing with finished inner diameter, outer diameter, thickness, material and quantity. Casting and machining feasibility must be reviewed for that specific geometry before a manufacturing commitment is made.
